I have been doing some fascinating work with a mental health service provider in New Zealand. What’s interesting about it is the way they are validating their intervention logics. They firstly ran 30 odd workshops with staff (consulting over 200 people) and generated the first draft of the intervention model. Then they conducted a series of focus groups with their clients. I then facilitated a big fourm with 60 staff and refined the logic models against 1) a best practice review 2) the client feedback 3) some standards about how to do good intervention logic. We refined the models in a big huge room (where the lights kept changing colour every few minutes, very space age, especially the neon pink!). I love the participation and the cross-checking.